EUC-KR support for KT SMS on CM-10.2
 - Modify from this commit 2d6a3fd81adff63f1070396418066568330f0ce1

Signed-off-by: cholokei <leesl0416@naver.com>
Add initial Short Code for Korea

Signed-off-by: cholokei <leesl0416@naver.com>